Introduction: Knex RBG: Halo Plasma Rifle

Picture of Knex RBG: Halo Plasma Rifle

A knex rubber band gun that looks and fires like the Halo plasma rifle. 
Plasma Pistol
-Automatic and semi-automatic
-Looks and fires like the halo plasma rifle
-Holds up to 20 rubber bands without spacers, and nearly no limit with them.
- Trigger only fires semi-automaticaly
- Inaccurate when fired quickly.
- Uses 2 modifies pieces.
- Takes a long time to reload.
Suggested use: Primary RBG
Similarities and differences (according to haloapedia)
Halo 1

- The sounds when firing are similar to my plasma pistol. 
- General colors and shapes are similar.
- Firing is different when using trigger (1 pull = 1 plasma bolt).
- Can only 20 projectiles (without spacers) compared to 200.
Halo 2 and 3
- Can only 20 projectiles (without spacers) compared to 400.
- The sounds when firing are different to my plasma pistol.
- Firing is similar when using trigger (1 pull = 2 plasma bolts).
- 20% less ammunition.
Halo 1, 2 and 3
- Length width and height are half of the real one.
- Mine is less detailed (e.g. No "fangs").
- Mine does not overheat, nor have overheat vents.
- Dual wieldable.
- Heavy, compared to other hand held knex guns

Step 1: Peices

Picture of Peices

Yellow: 3
Blue: 57
White: 24
Green: 14
Dark gray: 26
Light Gray: 8
Orange: 2
Red: 9
Green: 16
Purple: 12
Yellow: 19
Blue: 9
White: 2

Comment if I got any of these numbers wrong.

Step 2: Handle

Picture of Handle

 Follow the pictures.

Step 3:

Picture of

Follow the pictures, and build two of the barrels.

Step 4: Assembly

Picture of Assembly

Follow the pictures, then the video.

Step 5: Loading and Firing

Picture of Loading and Firing
Follow the first picture.
Load before you add the exterior.
Hold the handle and shake the gun up and down. To fire more accurately, shake gently. To fire rapidly, shake it move vigorously.
Semi automatically:
1) Hold the bottom of the gun with your other hand and pull the trigger .The trigger is not supposed to move. Pulling it causes the handle to move.
2) Reset the handle by moving the bottom of the gun backward.

Video Here:

It reloads in a similar manner to plasma pistol, but you alternate between barrels to reduce the risk of firing when reloading.

Step 6: Last Minute Modifications.

Picture of Last Minute Modifications.

Follow the pictures.


SonicX 22 (author)2010-06-16

It's good that it takes a long time to reload cuz the plasma rifle can't reload at all also I found out how to attach the exterior way cool gun!!! Just make sure that you don't melee with it :) 5*

charge11595 (author)SonicX 222010-06-17

Cool. Once I get the videos up, you can see if you did it right.

eagle92lightsaber (author)2015-11-07

this is awsome i am customizing it now that i have built it

oblina (author)2012-03-21

Do u have to cut the yellow one

charge11595 (author)oblina2012-03-21

Cutting the yellow connector is optional. It's not necessary, but it would jam less often.

danroy99 (author)2011-12-21

Wait, do you have to load rubber bands BEFORE you stick everything onto the "skeleton"?

charge11595 (author)danroy992011-12-21

Unless you can find a way to load the gun whit the outer shell on, then yes, you will have to load it before attaching the shell. It works perfectly fine without the shell, but won't look like the Halo plasma rifle

An Villain (author)2011-10-30


sneature (author)2011-07-03

yeah could u plz add a vid i don't get it.thx :)

charge11595 (author)sneature2011-07-04


intheshadows2009 (author)2011-06-10

i love the halo series, and i am happy to see that someone has made such an awsome replica ; ] does any one know how to make a good needler

I'm working on a instructable so look forward to in the future : )

yeah yeah (author)2010-12-29

does it just fire rubber bands then?

charge11595 (author)yeah yeah2010-12-29

Yes, it's a rubber band gun.

yeah yeah (author)charge115952010-12-30

shame i may modify it to fire something if i do i will post it but over nice one

charge11595 (author)yeah yeah2010-12-30

It's a rubber band gun, it is supposed to shoot rubber bands, that is why i built it, too shoot rubber bands.

yeah yeah (author)charge115952010-12-31

yes and i may modify it to make it fire something else ok thats why i said it ok

knexjay (author)2010-09-10

I like the texture on the barrels 5*s

Bistai949 (author)2010-07-26

how do you Load and fire it?

charge11595 (author)Bistai9492010-07-28

Srry, forgot to include that when i added the video. I'll add those instructions them today :)

Bistai949 (author)charge115952010-07-28

I've actually figured it out already but put the in anyway! Also I've built it and I REALLY like it thanks for the awesome plasma rifle now if only I had a plasma repeater

charge11595 (author)Bistai9492010-08-25

I'll look it up on Haloapedia and see if I can make one :)

MuseGlitch (author)2010-06-26

Hello i'm very happy someone tried to create a plasma rifle out there. I'm a huge fan of the Halo seiries and this is a pretty close recreation. great job. one note though is that you may want to add a count on green rods to the top of your instructable. its not listed there, only pictured. thanks

charge11595 (author)MuseGlitch2010-06-27

Thanks for the help! You may also want to see my plasma pistol (CLICK HERE). It fires the same way.

MuseGlitch (author)2010-06-26

turns out you need an additional 4 red connectors and an additional 4 white rods and some additional blue rods to complete the exterior. anyway i just completed it and its awesome just wondering though...What and how does it fire?

MuseGlitch (author)2010-06-26

by the way your red conector count is low by 3

SonicX 22 (author)2010-06-13

YAY ITS OUT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

EATLEAD97 (author)2010-06-09

pretty cool

Mr. Muggle (author)2010-06-09

I like this instructable better than your other ones, if you'll keep coming with these things I'll subscribe to you!

~KGB~ (author)2010-06-09

thats impressive! 5*

About This Instructable




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